What a cute place! I love all the things you have done so far. I've looked at all the photos and made a list. Please read it in a gentle, matter-of-fact tone, because I do not want it to sound harsh and suspect it will. Not my intent, I assure you. In no particular order:
In the kitchen...
K-Put a 4" wide shelf all the way across the span above the stove. Put cooking utensils, etc. there.
K-Ditch the mirror above the sink and put a 6" wide shelf there for rice cooker and similar. 8" might work, but you don't want to hit your head.
K-Invert the yellow thing and store it in the white thing sitting on the cake stand. Turn the handles on the white thing so it sits closer to the wall. Better still, hang a high shelf in the soffit above the refrigerator cabinets and put that stuff up there, if you can't part with it. You may need a step stool to access it, so get one that folds flat. Hang it on the wall next to the balcony door. Bye-bye to what looks like a manila envelope.
K- Do you really need a toaster oven and a microwave? I'd buy a two-slice toaster, move the micro to the counter and get rid of the micro stand.
K- Spoon Rack? Whaaa? At least move it into the kitchen above the bread machine. And put that scary knife back wherever it was before.
K - Put cooking oil and soap away. When I lived in a tiny place, I used a small soap bottle (from an extended stay hotel) and kept it and a sponge in one of those racks you suction cup to the inside of the sink. Handy and off the counter.
On to the living room...
LR- Push dining chairs flat against the wall when not in use. Let the rocking chair be the star.
LR- Stand facing the desk. Slowly slide the right hand table out and put all those electronics on the floor. Carefully slide table back into place. Put printer on table.
LR- Hats on lamps are fire hazard. Floor lamps are trip hazard. Get something wall mounted, possibly swing arm and definitely LED from Ikea and put above either end of desk. Or even on the desk, now that the printer is gone.
LR- Buy an inexpensive matchstick-type or Roman shade and attach to Murphy bed to hide the shelves. Use Command hangers so you don't harm the unit.
LR- Move the barbells to the floor underneath storage shelves. Too heavy.
LR- Get rid of mirror, clock and papers on closet. If you need a bulletin board, there are cute Command clip-ons that you can attach to the left side of the bed, towards the office set-up. The cell phone trick to check your look in the bathroom mirror is golden. If you must keep a clock (NO!!!), hang it over the desk, but since your stove, computer and phones all function as time keeping devices, it really is redundant.
LR- I second the idea to put something pretty on the wall behind the MB, so you can see it when the bed is down.
LR- If you're going to be there a long time, I'd consider replacing the desk chair with something more streamlined. CL (or equivalent) is your friend. Extra points if it could double as an extra dining chair.
Next, the bathroom...
BR- Not much to add but this, in my mother's voice, "Put that damn lid down!" Besides looking more attractive, it will give you another place to sit. As to additional storage, don't buy one of those monstrosities that sits on the floor and goes above and around the toilet. A few shelves or a small cabinet are better options. I like the picture.
BR - That kitty litter! Tuck it in the corner behind the toilet and hide it with the trash can. Ikea has some small, rectangular, covered trash cans that will tuck in nicely, and only cost a few bucks.
Finally, get some of those neat-o Command coat hooks and stick 'em on the back of the front door. Keeps your coats handy and out of the main living space.
Some of this stuff you can do right away and will cost you nothing. Others will take a little measuring, planning and a few loonies. Don't forget that you can buy pre-fab shelving at the big box stores and they will cut it to exact size for a very reasonable fee. Ordinarily, I am no fan of Ikea, but they are a valuable resource when outfitting a tiny home. And no, I don't work for 3M, but that Command stuff is better than post-it notes. Ikea and Target usually have a good selection. I can't think of a shoe solution yet, so I'll just have to let that one go for now...
And the FU bag? Love it!